When the Denver Broncos host the San Diego Chargers on Sunday for the right to advance to play in the AFC Championship the following week, could we be getting closer and closer to seeing the end of the career of one of the greatest quarterbacks to ever play the game? After a year in which he set nearly ever major single-season passing record, could Peyon Manning retire if the Broncos win Super Bowl XLVIII? He may not be talking about the next few weeks, but Manning does concede that the end could be near.